The phrase "always disprove" is correct and usable in written English.
It can be used when discussing the act of consistently demonstrating that a claim or theory is false.
Example: "In scientific research, it is essential to always disprove any hypotheses that do not hold up under scrutiny."
Alternatives: "consistently refute" or "invariably contradict".
The diminishing-returns rule of comedian-driven features, and the old line that five minutes of comedy can get weaker when it stretches to 105 minutes, is not always disproved here.
There are renewed questions about Paterno's coaching touch, the kind that have circulated before -- and have always been disproved -- after low points in his career.
False negatives can be potentially more harmful than false positives, since they may be discarded forever, while a false positive can always be disproved or "falsified" later, albeit at some cost.
We describe the intuition of the externality and provide a numerical example illustrated in Figs. 1 and 2. In this way, we disprove that CW standard is always a stronger condition than TW standard.
For some reason, the businessman formerly known as Sir Philip Green has always seemed to be on a mission to disprove it.
It is not possible to completely disprove the renewal account because it always can be adapted post hoc to the data.
British officials believe that, at this late date, no amount of research would conclusively prove or disprove what they see as conspiracy theories that have always surrounded Hammarskjöld's death.
We will disprove this conjecture by showing that the correlation coefficient always vanishes, and will discuss some of its consequences.
DANIEL M. BLANK Princeton, N.J., Oct. 17, 2011 To the Editor: James Shapiro suggests — as many others have done — that we must always be proving, or disproving, that a single author wrote, or didn't write, the plays.
In other words, claiming other universes exist but we can't observe or detect them is like saying I always dream in Latin: it's something that's impossible to prove or disprove, leaving it beyond science and of little practical use.
